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The Difference Between XLPE And PVC Power Cable Insulation

Feb. 14, 2019

XLPE is acceptable for voltage ranges from low to extra high voltage, exceeding other insulation materials like PVC, Ethylene Propylene Rubber (EPR) and silicone rubbers. Cross-linking the polyethylene also enriches the oil and chemical resistance at elevated temperatures making it convenient for use as a Low Smoke Zero Halogen substance. So XLPE Insulated Cable is the ideal Power Cable.

The mechanical properties of the XLPE are superior to many other insulations, offering greater tensile strength, elongation and impact resistances. The addition of carbon black can be used to further enhance hot deformation and cut through resistance. The XLPE insulation will not melt or drip, even at the temperatures of soldering irons, and it has increased flow resistance and improved ageing characteristics.

Improved water-tree resistance is another benefit of XLPE Insulated Cable and MV Cable over PE insulations. Water treeing is a defect which is the result of imperfections in the insulation where fracture lines occur and grow in the direction of the electric field, increasing with electrical stress. It should be noted that this effect is not limited to PE materials.

XLPE Insulated Cable

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